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Researchers have demonstrated that, from seven methods commonly used to test for viruses in untreated wastewater, an adsorption-extraction technique can most efficiently detect SARS-CoV-2.Associated journal article: Warish Ahmed, Paul M. Bertsch, Aaron Bivins, Kyle Bibby, Kata Farkas, Amy Gathercole, Eiji Haramoto, Pradip Gyawali, Asja Korajkic, Brian R. McMinn, Jochen F. Mueller, Stuart L. Simpson, Wendy J.M. Smith, Erin M. Symonds, Kevin V. Thomas, Rory Verhagen, Masaaki Kitajima. Comparison of virus concentration methods for the RT-qPCR-based recovery of murine hepatitis virus, a surrogate for SARS-CoV-2 from untreated wastewater. Science of The Total Environment, 2020; 739: 139960 DOI: 10.1016/j.scitotenv.2020.139960